In this paper, it is intrcdueed that the concepts of probabilistic reta tive precompactness and relative compactness of point set on probabilistic metric spaces, thcir properti s are discussed and their relatio:s are esta blished.

• 本文引进了概率度量空问的点集概率相对预紧性与相对紧性概念,讨论了它们的性质,建立了二者之间的关系。